package com.cloudfunx.common.util;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class HtmlUtil {
    private static final String regEx_script = "<script[^>]*?>[\\s\\S]*?<\\/script>";
    private static final String regEx_style = "<style[^>]*?>[\\s\\S]*?<\\/style>";
    private static final String regEx_html = "<[^>]+>";
    private static final String regEx_space = "\\s*|\t|\r";
    // private static final String regEx_space = "\t|\r|\n";

    /**
     * @param htmlStr
     * @return 删除Html标签
     */
    public static String delHTMLTag(String htmlStr) {
        Pattern p_script = Pattern.compile(regEx_script, Pattern.CASE_INSENSITIVE);
        Matcher m_script = p_script.matcher(htmlStr);
        htmlStr = m_script.replaceAll("");

        Pattern p_style = Pattern.compile(regEx_style, Pattern.CASE_INSENSITIVE);
        Matcher m_style = p_style.matcher(htmlStr);
        htmlStr = m_style.replaceAll("");

        htmlStr = htmlStr.replaceAll("<\\/p>", "\n");
        Pattern p_html = Pattern.compile(regEx_html, Pattern.CASE_INSENSITIVE);
        Matcher m_html = p_html.matcher(htmlStr);
        htmlStr = m_html.replaceAll("");

        Pattern p_space = Pattern.compile(regEx_space, Pattern.CASE_INSENSITIVE);
        Matcher m_space = p_space.matcher(htmlStr);
        htmlStr = m_space.replaceAll("");
        return htmlStr.trim();
    }

    public static String getTextFromHtml(String htmlStr) {
        htmlStr = delHTMLTag(htmlStr);
        htmlStr = htmlStr.replaceAll("&nbsp;", "")/*.replaceAll("\n" , "")*/;
        return htmlStr;
    }

    // public static void main(String[] args) {
    //     // String str = "<div style='text-align:center;'> 整治“四风”   清弊除垢<br/><span style='font-size:14px;'> </span><span style='font-size:18px;'>公司召开党的群众路线教育实践活动动员大会。</span><br/></div>";
    //     String str = "<p>返回接口撒倒海翻江看撒护肤科技似懂非懂撒</p >\\n<p>&nbsp;</p >\\n<p>&nbsp;";
    //     System.out.println(getTextFromHtml(str));
    // }
}